27108197064 has 96 divisors (see below), whose sum is σ = 81792055800. Its totient is φ = 8053355520.

The previous prime is 27108197057. The next prime is 27108197071. The reversal of 27108197064 is 46079180172.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (27108197057) and next prime (27108197071).

It can be written as a sum of positive squares in 4 ways, for example, as 15388402500 + 11719794564 = 124050^2 + 108258^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 472197 + ... + 526484.

Almost surely, 2^27108197064 is an apocalyptic number.

27108197064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27108197064 is an abundant number, since it is smaller than the sum of its proper divisors (54683858736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27108197064 is a wasteful number, since it uses less digits than its factorization.

27108197064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998735 (or 998728 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 27108197064 in words is "twenty-seven billion, one hundred eight million, one hundred ninety-seven thousand, sixty-four".